D
　　As the country's economy continues to steam ahead,once popular forms of entertainment,such as Karaoke(卡拉OK),card games and even boxing bars,appear to be losting their attractiveness.Stressed out white - collar wokers are camping out on rooftops,smashing(砸）up restaurants,pretending to be children and even visiting cemeteries in a effort to ease the pressure of modern life.
　　Consider the members of Shanghai's Cat Rain club.By day,this group of young women work executive (决策管理的) jobs,but by night they climb buildings so they can spend the night on the roof."You feel relaxed when you're sitting on the roof,looking up to the sky and chatting with friends," said Gong Ying,25.
　　The stress of work is not just limited to people in Shanghai.A recently opened restaurant in Beijing encourages customers(顾客) to smash plates --- as long as they are willing to pay to replace them.Some workers even wish to return to their childhoods.Recently,hundreds of people took part in a festival in which adults pretended to be children.It was an adultsonly event,and participants could read comics and eat sweets all day.
　　Scenic places such as parks and rivers can also help people relax and put things in perspective.But a cemetery?
　　Cemetery companies in Shanghai organized visits to local graveyards for stressed - out workers in March.The participants were taken to quiet spots in the cemetery where they could think about life and their futures."Pressure may bring us unhappiness,but it doesn't mean we can't find ways out,"says Chen Bin,a rooftop camping fan with still some other interests."Life should be imaginative."
　　68.Peopel are going to those new activities mainly for ______.
　　　A.recreation   B.new ideas   C.physical refreshment   D.psychological relaxation
　　69.The underlined phrase "put things in perspective"in the 4th paragraph possibly means______.
　　　A.have a good rest          B.get over negative feelings
　　　C.take physical exercise      D.judge things correctly
　　70.When Chen Bin says:"Life should be imaginative",she means______.
　　　A.life should be lived in imaginations
　　　B.the dead can be alive in our imagination
　　　C.people should create new ways of life
　　　D.we should view life positively

D

　　As the country's economy continues to steam ahead,once popular forms of entertainment,such as Karaoke(卡拉OK),card games and even boxing bars,appear to be losting their attractiveness.Stressed out white - collar wokers are camping out on rooftops,smashing(砸）up restaurants,pretending to be children and even visiting cemeteries in a effort to ease the pressure of modern life.

　　Consider the members of Shanghai's Cat Rain club.By day,this group of young women work executive (决策管理的) jobs,but by night they climb buildings so they can spend the night on the roof."You feel relaxed when you're sitting on the roof,looking up to the sky and chatting with friends," said Gong Ying,25.

　　The stress of work is not just limited to people in Shanghai.A recently opened restaurant in Beijing encourages customers(顾客) to smash plates --- as long as they are willing to pay to replace them.Some workers even wish to return to their childhoods.Recently,hundreds of people took part in a festival in which adults pretended to be children.It was an adultsonly event,and participants could read comics and eat sweets all day.

　　Scenic places such as parks and rivers can also help people relax and put things in perspective.But a cemetery?

　　Cemetery companies in Shanghai organized visits to local graveyards for stressed - out workers in March.The participants were taken to quiet spots in the cemetery where they could think about life and their futures."Pressure may bring us unhappiness,but it doesn't mean we can't find ways out,"says Chen Bin,a rooftop camping fan with still some other interests."Life should be imaginative."

　　68.Peopel are going to those new activities mainly for ______.

　　　A.recreation   B.new ideas   C.physical refreshment   D.psychological relaxation

　　69.The underlined phrase "put things in perspective"in the 4th paragraph possibly means______.

　　　A.have a good rest          B.get over negative feelings

　　　C.take physical exercise      D.judge things correctly

　　70.When Chen Bin says:"Life should be imaginative",she means______.

　　　A.life should be lived in imaginations

　　　B.the dead can be alive in our imagination

　　　C.people should create new ways of life

　　　D.we should view life positively

完形填空

　　Most of us can remember the days when we didn't use e-mail as an everyday vehicle for communication. Slowly but surely, it crept into 1 . E-mail is a 2 tool for college students at any level. It's available 24 hours a day, 7 days a week and 3 at holidays. Most universities assign students an account upon entrance, 4 there is usually not even an option (choice) involved.

　　You can do everything from consulting on homework and projects, 5 classmates, family and friends, arid getting daily news services to 6 you informed of world 7 . But, what are the 8 ?

　　E-mail can. be e-jail. You might 9 hours writing and replying to e-mail. 10 you should be busy with the books for an upcoming exam. 11 , you might be signed up for so many daily services, 12 horoscopes, news services, or personals, that your mailbox is so 13 “junk mail,” the finding the 14 e-mails through your box might take hours.

　　If you're a student, 15 is precious. Create and organize your e-mail folders into important school-related mail, correspondence with friends and family, and a folder for jokes, horoscopes and other news, services. 16 put the mail into the proper folders first, and when you're finished, head for the important school-related folder first. Respond to the most important e-mails first and, 17 you have time, you can get to the others.

　　 18 your friends from forwarding those tiresome joke lists, sex quizzes, and chain mails. The minute you 19 you've got one, delete it 20 so you won't be tempted to read it.

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　　The plan: turn Mars into a blue world with streams and green fields, and then fill it with creatures (生物) from the earth. This idea may sound like something from a science fiction (科幻小说), but it is actually being taken seriously by many researchers.

　　This suggested future for the “red planet” will be the main topic for discussion at an international conference hosted by NASA (美国宇航局) this week. Leading researchers as well as science fiction writers will attend the event. It comes as NASA is preparing a multi?billion?dollar Mars research programme. “Turning Mars into a little earth has long been a topic in science fiction,”said Dr Michael Meyer, NASA’s senior scientist for astrobiology (太空生物学). “Now, with scientists exploring the reality, we can ask what are the real possibilities of changing Mars.”

  Most scientists agree that Mars could be turned into a little earth, although much time and money would be needed to achieve this goal.

　　But many experts are shocked by the idea. “We are destroying our own world at an unbelievable speed and now we are talking about ruining another planet,” said Paul Murdin, of the Institute of Astronomy, Cambridge, UK. Over the past months, scientists have become increasingly confident they will find Martian life forms. Europe and America’s robot explorers have found proof that water, mixed with soil, exists in large amounts on the planet.

  In addition, two different groups of scientists announced on March 28 that they had found signs of methane (甲烷) in the Martian atmosphere (大气). The gas is a waste product of living creatures and could be produced by microbes (微生物) living in the red planet’s soil.

　　But scientists such as Dr Lisa Pratt, a biologist at Indiana University, say that these microbes will be put in danger by the little earth project. “Before we have even discovered if there is life on Mars, we are talking about carrying out projects that would destroy all these native lifeforms, all the strange microbes that we hope to find buried in the soil,” said Dr Pratt. This view is shared by Monica Grady, a planetary scientist at the Natural History Museum, London. “We cannot risk starting a global experiment that would wipe out the precious information we are looking for.” she said， “This is just wrong.”

5. The passage is about________.

A. a plan turning Mars into a little earth

B. the necessity of changing Mars

C. Mars supporting life

D. finding water in the Mars

6. Which of the following is NOT the reason why some scientists are against the plan?

A. The project would wipe out all the native lifeforms on the Mars.

B. The project will cost too much money and work.

C. We would ruin Mars.

D. We are destroying our own world at an unbelievable speed. 

7. We can infer from the passage that________.

A. water is a crucial factor for life

B. the project will have little effect on the native lifeforms supposed to live on the Mars

C. Monica Grady is in favour of carrying out the little earth project

D. the idea turning Mars into a little earth is nothing but a science fiction

8. Which of the following supports the conclusion of microbes living in the Mars’s soil?

A. Scientists found liquid water in the Mars.

B. Scientists found signs of methane in the Martian atmosphere.

C. Scientists found a lot of good soil on the Mars.

D. Scientists found some creatures living on the Mars.

　  Animals can move from place to place, but plants cannot. When an animal is under attack, it can run away or fight back. Plants certainly cannot run away, and they lack teeth and claws. But plants can defend (保护) themselves by using both physical and chemical means.
　　Some plants have their own ways to keep animals away. For example, the leaves of the holly plant have sharp spines (刺) that discourage grass-eating animals. Holly leaves on lower branches have more spines than leaves on upper branches. This is because the lower leaves are easier for most animals to reach.
　　Some plants, such as the oak tree, have thick and hard leaves that are difficult for animals to eat. Some grasses may contain a sandy material; eating such grasses wears down the animal's teeth.
　　Many plants also have chemical defenses. Some plants produce chemicals that taste bitter or cause an unpleasant reaction. Some plants may fight against an attack by increasing the production of these chemicals. When a caterpillar (毛虫) bites a tobacco leaf, the leaf produces a chemical messenger. This messenger sends to the roots the information to produce more nicotine. The higher levels of nicotine discourage the caterpillar.
Many plants depend on both physical and chemical defenses. A certain plant in China, for instance, has prickly (多刺的) leaves, and each prickle contains poisonous venom (毒液) A single experience with this kind of plant will teach an animal to stay away from it in the future. 
【小题1】To defend themselves, oak trees use________.